Tacking-machine



(No Model.) 3 Sheets-Shet 1.

F, G. ROBBI'NS. 'PACKING MAHINE. No. 190,988 Patented Jan. 81,1893.

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(No Model.) 3 sheets-sheet '2.

IE'. G. ROBBINS.

TAGKING MACHINE.

No.v 490,988. Patented. Jan. 31, 1893.

4m/559525. /Vyf/VTUR- "MM40/ML 62 gf/Mz @Mw UNITED STATES ATENT OFFICE.

FRANK G. ROBBINS, OF I-IAVERHILL, ASSIGNOR OF ONE-HALFA TO CHARLES Y H.KELLEY, OF REVERE, MASSACHUSETTS.

TACKlNG-IVIACHINE.

SEECIFIGATION forming part of Letters Patent No. 490,988, dated January31, 1893.

Application tiled November 25, 1891. Serial No. 413.102. (No model.) i

.To a/ZZ whom t may concern: are detail views showing the transferringBe it known that I, FRANK G. ROBBINS, a mechanism in differentpositions. Fig. 6 is a citizen of the United States, residing atHadetail view, partly in section, showing the verhill, in the county ofEssex and State of driver and holder and certain (zo-operating 53 5Massachusetts, have invented certain new parts. Fig.7 is a sectionalview showing the and useful Improvements in Tacking Malower portion ofthe driver and the parts adchines, of which the following is aspeciieajacent thereto. Fig. 8 is a detail view of the tion, referencebeing had therein to the actack-feeding or delivering mechanism. `Figs.coxnpanying drawings. 9 and 10 are a side view and a plan view, re- 6oio My Vinvention has for its object to produce spectively, of theseparator a8. Fig.` ll is a an automatic tacking machine which shall bedetail view of the said separator and adjacent eiilcient and speedy, andwhich may be readily parts. A controlled by the operator so that onetack Tacking machines are frequently used in only maybe driven,or thatanindefinite numthe manufacture of boots and shoesfas for 65 15 ber oftacks' may be driven in rapid succesexample, in the lasting of shoes.When masion. chines are used for this purpose it is desir- Theinventionconsistsin an automatic tackable that the parts of such machines shoulding machine embodying certain new and imbe so constructed and arrangedthat the tackproved features of construction, and novel drivingdevicemay be changed inits location 7o zo and useful combinations andarrangements readily in order that the tacks may be driven of parts, thesaid machine in its entirety in different parts of the shoe. It is alsodecomprising tack-feeding or delivering mechsirable that when the deviceis not in use lit anism, transferringmechanism adapted to may be placedout of the way of the worktransfer tacks successively from the feedingman. I therefore mount the essential Work- 75 25 or delivering mechanismto tack holding ing parts of my machine on a frame which is mechanism,holding mechanism, tack-driving hun-g and supported in a manner whichpermechanism, a supporting frame for all these mitsl the same to beswung freely in any dimechanisms which is mounted in such mannerrection, and raised or lowered out of and into that it may easily bemoved either vertically working position all as and when desired. 8o 3oor laterally so that lthe tack may be driven The said frame is markedDin the drawings. i where desired and so that the whole may be It isshown most clearly in Fig. 2, and is esswung out of the way when not inuse, and sentially U-shaped, the upper extremities ofY actuating deviceswhereby all the foregoing the arms thereof having holes therethroughmechanisms are properly operated. to enable them to be fitted uponahorizontal 85 3 5 The invention will iirst be described with transverseshaft d which is mounted in bearreference to the accompanying drawings,in ings at the forward ends of the arms of a which the same letters of,reference designate yoke-shaped frame B' each of the said ends the sameparts in all the figures, and then being forked so as to pass on bothsides of will be distinctly defined and particularly the upper extremityof the corresponding 9o 4o pointed out in the claims which are appendedarm of frame D. This mode of connect-ion hereto. permits frame D to beswung forwardly and In the drawings, Figure l is a sectional siderearwardly as desired. By means of a horielevation of a machineconstructed in accordzontally arranged bolt Z191 passing through ancewith my invention. Fig. 2 is an enthe rear portion of the yoke B', thelatter is 95 45 larged detail view in front elevation showing pivotallyconnected with the forward part or mainly the devices which operate andcontrol cross-piece of a frame B, this connection perthe tack-driver.Fig. 3 is a detail view showmitting the yoke Band frame D to be swunging in side elevation, partly in section, the laterally on the pivotconstituted bythe bolt lowerend of the race-bar containing the racebm.The frame .B has bearings therein for me 5o way for the tacks and thetransferring, holdthe reception of a horizontal transverse shaft 1'* ingand driving mechanisms. Figs. 4 and 5 G which is journaled in bearingsat the lower ends of hangers A, the said frame B having a rearwardlyextending portion vor arm upon which is mounted a weight O intended tocounterbalance the forward part of frame B and the parts appliedthereto. This arrangement permits the frame D and parts mounted thereinto be moved vertically as desired.

To the shaft G is fixed a band-pulley F and a sprocket wheel. a. Asprocket wheel c is fixed upon the shaft rZ and a chain b' passingaround the two sprocket wheels serves to transmit movement from theshaft G to the shaft cZ..4 Upon the shaft tZ is fixed a gear wheel emeshing with a gear-wheel f on a shaft g which is journaled in bearingsin the frame D and serves for the actuation of the essential workingparts of the machine.

Brackets 192 p2 secured to the sides of the frame D support a hopper c2into which are thrown the tacks intended to be used. luto this hopperextends the upper end of the grooved race-bar Z2, the 'lower end ofwhich extends to the point at which the tacks which have been placed inthe groove of the said race-bar, and have slid down the same, are takensuccessively and driven into the work. A ring g2 see Fig. 8, is placedtransversely of the hopper e2 and in a plane at right angles to theupper end of the race-bar, it rotating around the said end, and beingprovided on its interiorlwith buckets or projections 'n2 for the purposeof carrying the tacks up from the bottom Aof the hopper and droppingthem upon the grooved upper side of the upper end of the race-bar, andon its exterior with teeth with which meshes the thread of a worm f2 ona shaft o2. The ring g2 is supported by being mounted between pinions Z5which are journaled in the hopper-frame CZ2. The shaft c2 is journaledin the portions (Z2 of the hopper-frame e2 and carries a pulley b2around which, and a pulley a2 on the shaft g passes an endless band w21.A gear wheel h2 on the shaft c2 meshes with a gear wheelj2 fixed on ashaft 7a2 which is journaled in the hopperframe and carries two clearerwheels m2 provided with fingers or projections on their peripheres whichserve' to knock off the tacks which are not started properly in thegroove or race-way of the race-bar, there being one of these wheelsdisposed on each side of the race-bar. At the lower end of the race-barZ2 is a cross-bar Z2 which is supported by two rearwardly and downwardlyprojecting arms b3 c3, the latter forming part of a frame a2, see Figs.3, 4, and 5 which is provided with a split collar that is fitted andclamped upon the lower end of a sleeve s2, the latter being fitted atits upper end to the interior of the tubular boss r2 formed at thelowerpart of the frame D. The lower end of the race-bar Z2 passesthrough the .cross-bar d2, from the rear to the front thereof, and thegrooved path down which the tacks pass terminates adjacent to thecarrier a5. The said carrier is formed as a plate fitted to slideagainst the face of the cross-bar d3, itbeing made with slots f3 f2through which pass screws c3 e3 that serve to hold it to the' face ofthe cross-bar. The carrier is formed with a T-shaped slot g3 through thesame, and into the T-shaped slot passes the bottom tack in the groove ofthe race-bar. The purpose of the carrier is to receive the tacks as theysuccessively come tothe bottom of the raceway, and transfer them to theholding devices which will be hereinafter described and which hold thetack until it is driven.

In front of the carrier is `secured a shield h3 which prevents the tackwhich has passed into the slot g3 from being forced out of the front ofthe slot by the pressure of the tacks behind it. Vhen the carrier hasbeen moved along to transfer the tack which has entered the slot g3 therear side thereof closes the end of the race-way and retains the tackstherein in position until it moves back, whereupon as the slot g3 isagain presented in line with the race-way another tack is forced intothe said slot. The carrier d5 is engaged by lone end of a lever d4 andoperated thereby. The upper end of this lever a4 enters between twocollars b4 b4 which are fixed upon a vertically reciprocating rod p2 thelower end of said rod sliding in a hole in frame a2, and the saidcollars being connected by a bar c4 which its outside the lever a4. Asthe rod p2 moves up and down, the collars b4 b4 thereon alternately actagainst lever a4 vto move the same on its .pivot on-the frame a3 andslide the carrier backward and forward in front of the crossbar d3. Aseparator or pointed finger as is secured near the lower end of theactuating lever 0,4 and projects along the rear side of the carrier sothat as the carrier begins to move the point of the separator will bethrust between the lowermost tack remaining in the race-way and the tackin the slot gsvof the carrier, and will act to press or wedge back thetacks in the raceway, thus keeping them in proper position. This isdesirable, since sometimes the lowermost tack in the raceway will rideover the tack in the carrier and so get partially into the carrier andunless thrust back will sometimes interfere with the operation of themachine. Z3 is fitted to slide a pinj3 ther outer end of which is actedupon by a spring k3 which tends to press the pin js forward. On the saidpinj3 is fitted a block n3 having a beveled face, and also a face-platej5 which is adapted to enter the slot g2. When in the movement of thecarrier a5 the slot g3 is presented in front of the said face-plate z75the latter is forced into the slot by the action of thespring k3, itejecting from the said slot the tack which is therein held. Thefaceplatej5 is withdrawn from the slot g3 by the action of the lower endof rod p2 against the inclined face of block ns'in the descentyof saidrod. The length of the opening between the collars b4 bt'between whichthe upper end of lever a4 works is Such as tov IOO IIO

izo

Through thecross-bar permit the rod to move downward a distancesufficiently to withdraw the face-plate f5 before the lever a4 and thecarrier are moved.

The pinj3 and the face-platej5 constitute What may be termed a pusher.As a tack is forced out of slot g3 by the pusher it passes'between theadjacent faces of holders Z3 Z3 which are carried by levers C054 as,these levers being pivoted to lugs c5 c5 on opposite sides of a smallframe b5, and being acted upon by springs'cZ5 d5 which force the holderstoward each other. The opening between the holders Z3 Z3 into o whichthev tack is pushed from the slot g3 ares'slightly at the rear side ofthe holders,

kteriorly threaded sleeve Z.

that is at the edge next to the carrier, so that as the tack is pushedforward out of the slot g3 in the carrier it readily forces the holdersapart and ,may thusbe pushed to its place between the same. the sides ofthe tack underneath the head thereof and holditin avertical position.The tack thus held between the holders Z3 Z3 is driven into the work rbymeans of a tack driver m3. The upper end of the stem of this driverenters a hole. formed in the lower end of a driver-bar k which iscontainedy within the sleeve s2, the said upper end being formed with acircumferential groove into which enters the pin Zc which passes throughthe rod Zo, this connecting the driver and the driverbar togetherandpermitting the driver bar to be rotated with reference to the driver. Atits upper end the driver bar Zo is screw-threaded and fits within ascrew-threaded socket in the lower end of a screw j. The latter has anupper screw-threaded portion j2 and a lower screw-threaded portion js onits exterior. The former `enters the screw-threaded lower end of a yokeh, and the latter titsV withinthe iution of the yoke has fitted withinthe same a block h through which passes the shaft g', the said blockserving to steady the yoke and driver bar as they are moved up and down.A pin on stem h9 on the upper end of the yoke slides in a hole formed inthe cross-bar E at the upper end of frame D.

To the upper end of the yoke h, and on opposite sides thereof, arepivoted armsZ Z, the free depending ends of which are notched on theirrear sides to form shoulders 'm'. On the shaft g at each side of yoke his fixed a wheel j having a pin Zo. A projection g extending forwardfrom cross-bar E has a downwardly extending arm p to which is pivoted abell-crank q', the vertical arm of which is provided with laterallyprojecting pins ss adapted to be caused to bear against the arms Z Z.From the horizontal arm of bell-crank q hangs a chain r which fallswithin reach of the operator. When the latter grasps the chain andvpulls down upon it so as to rock the bell-crank q the pins s s press thearms Z Z back so that the pins Zc on the wheels jj may engage with theshoulders m', whereupon the yoke and connected driver-bar and driver areraised. As soon, however, as

The holders bear against' The slotted porwhich causes the driver toforce the tack into the work. A cushion formed by a washert of elasticmaterial is placed upon the boss u of frame D toreceive the impact ofthe blow of the sleeve Z in its descent. The arms q r are acted upon bycoiled springs T7, the tension of which may be varied as desired byshifting the free ends of the said springs from one to another of theholes s. The lower end of the driver passes through. the block b5, asshown clearly. in Figs. 6 and 7, and the face-plate f5 of the said blockis located between the shoulders at the end of the driver. A spring g5Isurrounds the stem of the driver and is connected at its upper end withthe said stem and at its lower end with the block b5, the said springacting to draw the said block upwardly. Normally the block is heldlbythe spring in contact with the lower end of sleeve s2 as in Figs. 6and 7. When the parts are intheposition in which they are represented inthe said figures, there is just sufcientspace between the holders Z3 Z5and the lower end of the driverm3 to admit the head of a tack. `Theextent IOC of this space will be varied by turning the 'o the flange mof the sleeverZ passes loosely the upper end of the rod p3, collars ornuts 10312932 being placed on the said rod above and below the said angein order thatrthe latter as it moves up and down may communicatemovement to the rod and thereby occasion the action of the parts whichare operated from' the rod p3. After chain r'A has been drawn upon bythe operator to turnv the bell-crank g' and move the arms Z intoposition to be engaged by the pins laV lc on the wheels j j and afterthe yoke and connected parts have v been raised in consequence of thisengagement and become disengaged, the yoke driverbar and driver areforced downward by the action of the spring pressed arms q r. At thecommencement of thedownward movement of these parts the block b5 isdrawn up against the lower end of the sleeve s2 by" the tensionof springg5, and it remains bearing against the same until the end of driver 'm3takes good bearing against the head of been well entered into the workthe holdersA are separated by reason of the pivoted arms @54 coming incontact with the wings h5 and the head of the tack is freed. The furtherdownward movement of thedriver forces the tack home. The gage aireferred to consists of a curved arm which is firmly secured to thelower portion of the frame a3 and in such manner that it may be adjustedwith reference thereto, that is so that the lower end of the gage may beslightly raised or lowered relatively to said frame as.

For greater convenience in handling my machine l provide a handle ifwhich is preferably of the ring shape shown and which is securedto thelower rear portion of the frame a3; the precise shape of the handle asalso i the point at which it is secured to my machine, is not essentialasdifferent operators lnight prefer handles of differentv forms andlocated at different places. The handle is a convenience'in guiding themachine. The operator may pass one or more of the fingers of his lefthand through the ring b9, placing the ring'at the end of the chain r9 onanother finger. This enables him by the use of one hand to guide themachine and operate it while the other hand is free.

1f my device is used in lasting, the right hand of the operator is freeto be used in holding and manipulatingthe lasting pinchers.

I claim as my inventionzl. The combination with a driving shaft, a

counterbalanced frame pivoted to swing vertically concentrically withthe axis of the said driving shaft, a yoke pivoted to the saidcounterbalanced frame to swing laterally thereon,

a driven shaft journaled in bearings in the said yoke, drivingconnections whereby the said shaft is actuated from the driving shaft, adepending frame hung concentrically with the driven shaft, a hopper andrace bar carried by the said depending frame, a tackfeeder for placingtacks contained in the hopper upon the. race-bar, a transferring deviceat the delivery end of the race-bar for separating the tacks andtransferring them to the tack-grasping device, a tack-grasping device, aspring actuated tack-driver, an actuating shaft mounted in bearings inthe depending frame and driven from the said driven shaft, a wheelcarried by said shaft and provided with a projecting pin, a pivotednotched arm connected with the tack driver, means whereby said arm maybe pressed into engagement with the said pin, and connections With thesaid actuating shaft through which the feeder,

transferring device and grasping device are made operative,substantially as described.

,2. The combination with the race-bar, of.

the carrier having the slot g3 and located adjacent to the end of therace-bar, an operating lever for the said carrier, the spring-pressedpusher having a cam-piece connected therewith, and a reciprocating rodcarrying collars or projections engaging said lever to move the carrier,the said rod also acting against the cam-piece to move the pusheroppositely to the spring, substantially as described.

3. The combination with the race-bar of the carrier having the slot g3and located adjacent to the end of the race-bar, the pusher, and devicesfor sliding the carrier across the end of the race-bar and actuating thepusher to eject atack from the slot g3, of the springpressed holdersbetween which the tack is forced when it is ejected from the slot g3, aspring supporting the said holders, a driver, means for actuating thedriver, and holderopening projections below the race-bar against whichthe arms of the holders are carried in the descent of the driver,substantially as described. v

4. The combination with tube s2, the driverrod within said tube, thedriver connected with the lower end of said driver-rod, and devices atthe upper end of said driver-rod for actuating the said rod and driver,of the frame f5, the spring connected with the said frame and tending tohold it against the lower end of the tube, the spring-pressed holderscarried by the said frame, and the fixed projections against which thearms of the holders are carried in the descent of the ldriver and whichserve to separate the holders, substantially as described.

5. The combination with the driver, the driver-bar, and a connectedyoke, of a rotating wheel, carrying a pin or projection, a shoulderedarm pivoted to the said yoke, vmeans whereby the said arm may be pressedinward to occasionvengagement between the shoulder and the projection orpin aforesaid, and a spring actuated arm or arms operating to depressthe driver and connected parts after the shoulder has become disengagedfrom the pin or projection substantially as described.

6. The combination with a driver, a driverrod screw-threaded at itsupper end, the internally-threaded coupling screwj having the eX- ternalthreaded portionsjz, j3, the yoke h fitted to portion j2, the shoulderedarm pivoted to the said yoke, a rotating wheel carrying a projecting pinadapted to engage With the shoulder when the arm is pressed toward thesame, means foi-pressing inward the said arm when desired, a angedsleeve fitted to the portionj3 of the screwj, and a spring-actuated armor arms acting against the flange of the sleeve, all substantially asdescribed.

7. The combination with a driver, a driverrod having a projection oriiange moving therewith, and means for actuating said IOO IIO

driver-rod and driver, of an actuating rod to be borne upon by the lowerend of the having nuts or stops thereon to be engaged actuating rod, anda tack-holder between the alternately bythe projection or liange as thejaws of which the tacks are successively I5 said driver-rodreciprocates, collars or propushed, when ejected from the carrier by the5 jections also carried by said actuating rod, a pusher, and held inposition to be acted upon lever having one arrn thereof disposed in pobythe driver, substantially asdescribed. sition to be engaged by the saidcollars or In testixruonywhereoi` Iafx rnysignaturein projectionsalternately as the actuating rod presence of two Witnesses. isreciprocated, a transferring carrier receiv- FRANK G. ROBBINS.

:o ing successive tacks of a series, a spring- Witnesses:

pressed pusher for ejecting the tacks from WM. A. MACLEOD, the carrierand having a cam-piece adapted ROBT. WALLACE.

